I need to use 6 to 8 BMP280's Using I2C and common wiring to 5V, GND, SCK & SDI. There is no chip selection in any of the tutorials that I could find that shows how to enable/disable communications in I2C mode. Looking at the BMP280's documentation, there is a "Vdd io" that must have 5V applied to enable communication. But nowhere in the tutorials is CS or CSO connected in I2C mode. Looking the SPI documentation there is an inference that the CS can be set. Is it active in I2C? Can I, set CS to 5V to enable one BMP280 at a time in I2C ? Or does Adafruit's BMP280 use SC to disable?